A researcher wants to know if a new therapy technique reduces suicidal thoughts in patients with depression. Out of her 20 current depression patients, she picked 10 to receive the new therapy. She knew that on average, depression patients had 4.5 suicidal thoughts per week, with a standard deviation of 1.2. After receiving the new therapy for a week, the average of 10 patients’ suicidal thoughts was 2.3. Question 4 (1 point)
The independent variable in this study is:

Question 4 options:

Suicidal thoughts
Depression
Time
New therapy

Question 5 (1 point)
The sample of the current study is:

Question 5 options
A) 20 patients
B) suicidal thoughts
C) 10 patients
D) Both B and C are correct answers.

Question 6 (1 point)
The dependent variable of this study is:

Question 6 options:
A) 20 patients
B) suicidal thoughts
C) 10 patients
D) Both B and C are correct answers.

Question 7 (1 point)
The measurement level of the dependent variable is:

Question 7 options:

interval
ratio
ordinal
nominal